Abstract: An apparatus for pressing glass preforms and placing the glass preforms into a blowing machine is provided. The apparatus includes a first plunger configured to be reciprocated between a gob-receiving region and a first preform-pressing region, a second plunger configured to be reciprocated between the gob-receiving region and a second preform-pressing region, a first press mold associated with the first plunger and configured to be reciprocated between the first preform-pressing region and a preform-placing region, and a second press mold associated with the second plunger and configured to be reciprocated between the second preform-pressing region and the preform-placing region. The respective plungers are configured interact with the respective associated press molds in the respective preform-pressing regions such that a gob received in the gob-receiving region by one of the respective plungers is formed into a glass preform and received by the respective associated press mold.

Abstract: A glass gob distributor for delivering gobs of molten glass to sections of a glassware forming machine, in accordance with exemplary embodiments of the present disclosure, includes at least one electric motor, a ball screw coupled to the electric motor and a carriage slidable on a carriage shaft and coupled to the ball screw. At least one gear rack is coupled to the carriage and at least one scoop is coupled to the gear rack for rotation around a scoop axis as a function of linear motion of the gear rack and the carriage. A pair of slides are slidably disposed on opposite sides of the carriage and are disconnected from the carriage. A pair of fluid cylinders are disposed adjacent to the slides. The fluid cylinders are responsive to an absence of power at the electric motor for pushing the centering slides toward each other to abut and slidably position the carriage on the carriage shaft, the gear rack and the at least one scoop at a home position.

Abstract: A gob deflector has an entry end for receiving molten glass gobs, an exit end for directing the glass gobs into a blank mold of a glassware forming machine, and a curved portion between the entry and exit ends. The curved portion has an arc defined by an upper curve contiguous with the inlet end of the deflector and a lower curve contiguous with the entry end of the deflector. The upper and lower curves have differing radii as a function of angle along the curved portion of the deflector.

Abstract: In an apparatus (1) for the severing of gobs from one or more strands (2;3) of molten glass, the severing of each gob is effected by a shear blade pair (5;6). A shear blade (7,8;9,10) of each shear blade pair is arranged on an associated, pivotably mounted shear arm (11;12). The two shear arms (11;12) are coaxially and freely pivotably mounted relative to each other on a common column (13). Each shear arm is pivotably drivable synchronously in relation to the other by its own separate drive means (24;25).

Abstract: An apparatus for delivering a glass stream including a first inner layer and a second outer layer, including a generally vertical orifice, and delivering glass from a second source such that the glass from said second source provides an outer layer about the glass from the first source as it flows through the orifice. A resistance heated tube assembly is made of platinum or material having similar resistance heating properties and extends from a glass source to an orifice through which the glass flows from a glass source for the inner layer. The tube assembly includes a tube portion having an inlet end that communicates with the source for the outer layer and an outlet end that communicates with the source. The tube portion has an axis positioned at any angle ranging between the horizontal and vertical but preferably has an axis which is more vertical than horizontal. Flanges are secured to the ends of the tube portion, and the flanges are connected to an electric power supply.

Abstract: Method and apparatus for producing vitreous optical elements by injection molding, which essentially includes the stages of: melting down a glass material into a molten state in a viscosity at or lower than a working point of the glass material; injecting molten glass under pressure into a mold cavity defined between transfer surfaces of relatively movable mold members of a mold assembly unit in communication with a sprue connecting the mold cavity with an injection port on the outer side of the mold assembly unit; and applying a predetermined pressure on the glass material in the mold cavity while cooling the mold assembly unit down to a temperature in the vicinity of yielding point of the glass material.

Abstract: An I.S. machine comprises a plurality of individual sections arranged in side by side relation. Each section has a section frame having a top wall having a front and a back and opposed sides on which is mounted a blank station including a mold opening and closing mechanism for forming a parison from a gob of molten glass, a blow station including a mold opening and closing mechanism for forming a parison into a bottle, and an invert and neck ring holder mechanism supported which is located between the mold opening and closing mechanisms for transferring a parison therebetween. The machine also has a baffle mechanism includinga blowhead carrier, a motor having an output, a transmission for transmitting the output of the motor to the blowhead carrier to displace the carrier, a housing for housing the transmission. The housing is secured on the top wall proximate the front thereof.

Abstract: An apparatus for continuously forming a glass-ceramic which melts raw materials and forms melted glass to a predetermined shape without cutting the melted glass and thereafter continuously crystallizes the formed glass to the glass-ceramic is provided.

Abstract: An I.S. machine is made up of a plurality of independent individual sections for receiving gobs of molten glass and for forming the gobs into glass containers. A gob distributor delivers gobs to the sections. The controller of these sections and the gob distributor are synchronized by means for generating a once per cut signal, a divide by N circuit where N is the number of sections which are to have gobs distributed to them, means for defining N, means for applying N to the divide by N circuit, means for supplying the once per cut signal to the divide by N circuit, and means for distributing the output signal of the divide by N circuit to each of the section and gob distributor controllers.

Abstract: A straight line shear mechanism has rack driven shears which are operated by a pneumatic cylinder. Opposite ends of the operating rod of the pneumatic cylinder are connected via nail head couplings which permit rotation of the rod about its axis and which automatically accommodates slight misalignments to minimize distortion of the rod.

Abstract: A straight line shear mechanism has rack driven shears which are operated by a pneumatic cylinder. The shear slides provide a barrier to infrared energy directed at the pneumatic cylinder. To cool the cylinder, a perforated cooling tube is connected to ambient air when the mechanism is operating and is connected to water when the mechanism is not operating.

Abstract: In an apparatus for removing molten glass from a bath through a taphole in the wall of a vessel containing the bath, and transporting the molten glass to a processing station, a lance can be moved through the taphole and dipped into the molten glass to pick up glass with the tip portion of the lance. The lance is connected to a connecting element of an operating arrangement by first pivot means and the connecting element is mounted on a support of the operating arrangement by a second pivot spaced from the first pivot. The two pivots have mutually parallel horizontal axes and, to provide for unimpeded pivotal movement of the lance about the first pivot and of the connecting element about the second pivot, the pivots are displaced relative to each other such that the lance is pivotable in a first vertical plane and the connecting element is pivotable in a second vertical plane which is spaced from the first vertical plane.

Abstract: A glass article such as a sham bottom tumbler with a decorative air bubble encapsulated in its base is produced on existing automatic glass-forming machines by injecting a bubble of air into a charge of molten glass in the gob-feeder section of a glass furnace as the charge is being formed into a gob. This is accomplished by mounting an air supply pipe in the gob-feeder orifice. Preferably, the outlet end of the pipe extends radially to the center of the orifice. Puffs of compressed air are supplied in synchronism with the feeder plunger cycle so an air bubble is formed in the lower end of the gob, and the gob is then formed by normal procedures into a finished article.

Abstract: The stream of molten glass which is discharged from the outlet spout of a molten glass feeder is severed to form discrete gobs of glass for delivery to the glassware forming machine. A pair of double edged shear blades move in opposite directions linearly across the stream to cut not only during an initial "pass through" stroke, but also to cut during their return stroke.

Abstract: Apparatus for manufacturing hollow glass articles, in which glass charges cut from a stream of molten glass are shaped into blanks which are transferred onto carriers and which are subsequently blown into hollow articles by a forming operation. Because, the shaped blanks are exclusively displaced according to a two-dimensional movement pattern of movement during their transfer to the carriers, the transport time of the blanks can be reduced so that the overall process can be performed more quickly.